CN110298887A - A kind of compound scaling board of visible light infrared double-waveband - Google Patents
A kind of compound scaling board of visible light infrared double-waveband Download PDFInfo
- Publication number
- CN110298887A CN110298887A CN201910471924.2A CN201910471924A CN110298887A CN 110298887 A CN110298887 A CN 110298887A CN 201910471924 A CN201910471924 A CN 201910471924A CN 110298887 A CN110298887 A CN 110298887A
- Authority
- CN
- China
- Prior art keywords
- target
- board
- visible light
- scaling board
- peltier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 150000001875 compounds Chemical class 0.000 title claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 24
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 235000004443 Ricinus communis Nutrition 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 8
- 210000004027 cell Anatomy 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000005679 Peltier effect Effects 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/80—Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention discloses a kind of compound scaling boards of visible light infrared double-waveband, including pedestal, and are fixed on the frame above pedestal, and the scaling board connecting with frame by cross bar；The scaling board is made of 24 groups of target units, and target unit is sequentially connected in series；Each target unit includes target fixed plate, and is installed on the Peltier array on front side of target fixed plate, and is successively installed on two radiator fans and circuit board on rear side of target fixed plate；The Peltier array and radiator fan are electricly connected with circuit board respectively；Each circuit board difference carry is in same CAN bus, and circuit board communicates to connect after the conversion of communication management module with host computer；The compound scaling board of visible light infrared double-waveband of the invention combines production scaling board using multiple groups target unit, solves the problems, such as that large scale scaling board is difficult to manufacture and design, can also be achieved the Accurate Calibration of visible light and infrared camera.
Description
Technical field
The present invention relates to a kind of compound scaling board of visible light infrared double-waveband, belong to visible light and infrared double-waveband camera
Accurate Calibration technical field.
Background technique
Currently, being directed to the urgent need of future war advanced IT application, different load is loaded, it is various to can replace completion
The military unmanned platform of combat duty becomes research hotspot.In operation, Situation Awareness is the of unmanned platform experiential function
One step loses eyes just as people, unmanned platform can not just carry out follow-up work not to the accurate perception of three-dimensional environment；
To realize that unmanned platform perceives the round-the-clock accurate steric environment of situation of battlefield, it is outer double that unmanned platform needs to carry visible red
Wave band camera.In realizing accurate steric environment perception, camera calibration plays an important role；Not only each new production
Camera must all be demarcated, and this is also the first step of many important applications in computer vision of marching toward；It is intended to obtain
Camera imaging model parameter, in order to restore 3D object space information from image；Camera calibration parameters precision is related to subsequent figure
As matching and object point positional accuracy will often use the biography based on plane template to accurately obtain the parameter information of camera
System standardization；However, the demand perceived for large visual field environment due to unmanned platform, it is necessary to use ultra-wide angle visible light and infrared
Camera.
Currently, having carried out many researchs for the scaling board for small field of view infrared camera；Common method has:
The scaling board of suspension is heated with heat gun, gridiron pattern is printed with the gridiron pattern of heating using LED patch is placed in corner point
It brushes on special circuit board or irradiates clear checkerboard lattice with uniform light.But above method calibration angle point quantity is few and fuzzy,
Picture contrast is poor, all cannot be used for the Accurate Calibration of ultra-wide angle infrared camera.Reaching preferable stated accuracy must have
Large scale, which has limited the researchs of ultra-wide angle infrared camera calibration；Common method is by splicing small size scaling board come structure
At large scale scaling board, but spliced scaling board does not have uniform thermal radiation property, without enough pre-
Experiment is difficult to find angle point from image；For the scaling board of ultra-wide angle Visible Light Camera, most of method is also to pass through spelling
Small size scaling board is connect to realize calibration.Therefore, it is difficult to design to solve ultra-wide angle LONG WAVE INFRARED and Visible Light Camera scaling board
The problem of manufacture, the present invention devise a kind of compound mark suitable for visible light infrared double-waveband camera based on paltie effect
Fixed board.
Summary of the invention
To solve the above problems, the invention proposes a kind of compound scaling boards of visible light infrared double-waveband, using multiple groups target
Unit combination production scaling board is marked, solves the problems, such as that large scale scaling board is difficult to manufacture and design, can also be achieved visible light and red
The Accurate Calibration of outer camera.
The compound scaling board of visible light infrared double-waveband of the invention, including pedestal, and it is fixed on the frame above pedestal, and
The scaling board being connect with frame by cross bar；The base bottom is equipped with the castor of included locking structure；The scaling board by
24 groups of target unit compositions, and target unit is sequentially connected in series；Each target unit includes target fixed plate, and is installed on mark
Peltier array on front side of target fixed plate, and successively it is installed on two radiator fans and circuit board on rear side of target fixed plate；It is described
Peltier array and radiator fan are electricly connected with circuit board respectively；Each circuit board difference carry is in same CAN bus
On, and circuit board communicates to connect after the conversion of communication management module with host computer；
Central control module, and the temperature control modules being electrically connected with central control module are provided on the circuit board,
And the temperature sensor with central control module communication connection；The Peltier array is electrically connected with temperature control modules；It is described
Peltier array is alternately arranged the Peltier board that mode combines by eight with cooling surface and heating surface and forms；Each electricity
Independent power module is additionally provided on the plate of road, each control module distributes independent power module, plays AC-DC conversion
The external power supply of function, scaling board entire so is just inputted in a manner of 220VAC, reduces the electric current on power lines；It is described
Power module is electrically connected with central control module, temperature control modules and radiator fan respectively, and scaling board is by 16 × 12 Paars
The composition of target made of pasting board, and the cooling surface of Peltier board and heating surface are applied respectively and are set as white target and black mark
Target, black target and white target are staggered；Scaling board includes 24 groups of target units, and each target unit is by eight target groups
At target unit is connected in series, and modular design increases the flexibility for obtaining calibration angle point quantity in experiment；In every group of electricity
Among road plate and eight targets, each there are two radiator fans, make each Unit Cell surface temperature fluctuation range lower than 0.2 DEG C, and
And the temperature of white target is reduced, reducing black target fever after being powered influences the heat transmitting of white target；In general, infrared spy
The resolution ratio for surveying device is lower than the resolution ratio of visible-light detector, and when lens focus is at infinity, too close object will be out of focus, is
Ensure that each target image is clear and occupies a certain number of pixels on the plane of delineation, the size of target be 80mm ×
80mm, it is long and wide than traditional visible light target about 30mm, it is flexibly mobile and can fixes at any time, two waveband scaling board is matched
There is a firm pedestal, and the castor of four locking structures is installed in base bottom；Scaling board can be used for outside visible red
The calibration of two waveband camera only need to access 220V alternating current, can demarcate to infrared camera, and it is quasi- not need complicated experiment
It is standby；For Visible Light Camera, directly demarcated.
Further, the cross bar is uniformly distributed along frame height direction, and the cross bar and frame are by aluminium alloy type
Material is made.
Further, described its surrounding of target fixed plate is equipped with positioning component；The target fixed plate passes through positioning group
Part is fixed between upper and lower adjacent two cross bar；The positioning component includes the interspersed lengthening circle for being installed on target fixed plate surrounding
Nut, and it is fixed on the adjustable lifting bolt for lengthening round nut end, and lifting bolt and lengthening is adjusted through being installed on
Fixing bolt in round nut；Described adjustable lifting bolt the upper end or lower end are connected with and move left and right for regulating element
Sliding nut；The sliding nut active card is set in the slideway that cross bar is equipped with.
Further, the Peltier board as cooling surface and heating surface applies respectively is set as white target and black
Target, and white target is identical with black target size, is 80mmX80mm.
Further, the central control module includes master controller, and the analog-to-digital conversion being electrically connected with master controller connects
Mouth and CAN bus communication interface；The master controller passes through CAN bus communication interface and CAN bus communication connection.
Further, the temperature control modules are made of analog line driver and its peripheral circuit.
Further, the temperature sensor be NTC temperature sensor, and its after filter circuit with central control module
Analog-to-digital conversion interface connection.
As preferred embodiment, the power module includes AC-DC converting unit, and with AC-DC converting unit its
The DC-DC converting unit of output end electrical connection；Described its input terminal of AC-DC converting unit is electrically connected with city；The AC-DC conversion
Unit is turned by the first AC-DC conversion circuit for exporting 5V DC voltage and the 2nd AC-DC for exporting 12V DC voltage
Change circuit composition, and the first AC-DC conversion circuit and the mutually isolated output DC voltage of the 2nd AC-DC conversion circuit；Described
One AC-DC conversion circuit its output end is electrically connected with temperature controller；The 2nd AC-DC conversion circuit its output end respectively with
Radiator fan and the electrical connection of its input terminal of DC-DC converting unit；Described its output end of DC-DC converting unit is controlled with center respectively
The master controller of module, analog-to-digital conversion interface and the electrical connection of CAN bus communication interface, and DC-DC converting unit its output voltage
For the direct current output that 3.3V, power module have two-way mutually isolated, respectively 5V and 12V；5V is exported directly as temperature control
The input of the analog line driver of molding block, and modulated rear driving Peltier array；Each circuit board can be to 8 Peltier boards
(temperature conditioning unit) is independently controlled, corresponding to have the independent analog line driver in 8 tunnels；Each analog line driver is defeated by master controller
Pwm signal out is modulated, and end reaction is the working polarity and operating current of specific Peltier board；Each Peltier board is matched
Independent NTC temperature sensor is had, by being sent into the analog-digital converter interface of master controller after filter circuit, after resolving
The temperature value current to this Peltier board；The 12V of 2nd AC-DC conversion circuit its output end of power module exports one point and is
Two, all the way as the driving power of radiator fan；Another way forms 3.3V output after DC-DC conversion circuit, is main control
Device, analog-to-digital conversion interface and the power supply of CAN bus communication interface；Wherein, the of the 5V for converting alternating current and 12V DC voltage
One, the 2nd AC-DC conversion circuit, and DC-DC converting unit for 12V DC voltage to be converted to 3.3V DC voltage is
Available circuit, this will not be detailed here its particular circuit configurations and its circuit theory.
As preferred embodiment, the Peltier board is 12706 type peltier-elements.
Further, its working method of the scaling board is as follows:
Inside single circuit board, closed loop configuration is constituted by temperature acquisition, PWM output, individual unit is controlled for realization
Quickly, stablize, control program of the main operation controller based on pid algorithm；The expression formula of discrete type pid algorithm is as follows:
It can be obtained by (1):
It can be obtained by (1) (2):
Δ u (k)=Kp(err(k)-err(k-1))+Kierr(k)+Kd(err(k)-2err(k-1)+err(k-2))； (3)
That is the expression formula of increment PI D, the err (k) in formula is k moment deviation of the setting value with respect to actual value, Kp、Ki、Kd
Three coefficients are obtained by gathering to try to adjust repeatedly；Δ u (k) is to adjust variable quantity；
After master controller powers on, first initialize CAN bus communication interface, analog-digital converter and timer device, later with
Setting cycle sequences read the temperature of each unit, and with carry out PID arithmetic after the setting value of the unit, be adjusted
Amount, is modulated the working condition of the unit；
Temperature sensor is communicated with host computer, obtains the target temperature of discrete cell, and read discrete cell
Present real-time temperature；Input variable of the temperature of single Peltier board as pid algorithm, is calculated output quantity；Center control
Module controls the working polarity and operating current of Peltier board with the calculated result of pid algorithm, finally obtains stable temperature control
Result processed；Central control unit drives radiator fan, cools down for temperature control modules.
The present invention compared with prior art, the compound scaling board of visible light infrared double-waveband of the invention, using multiple groups target
Unit combination production scaling board is marked, solves the problems, such as that large scale scaling board is difficult to manufacture and design, can also be achieved visible light and red
The Accurate Calibration of outer camera；Scaling board is easy to use, can be used for the calibration of visible light infrared double-waveband camera, need to only access 220V
Alternating current can demarcate infrared camera, not need complicated Preparatory work of experiment；For Visible Light Camera, directly marked
It is fixed.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the mounting structure schematic diagram of target unit and frame of the invention.
Fig. 3 is the decomposition texture schematic diagram of target unit of the invention.
Fig. 4 is the attachment structure schematic diagram of target unit and cross bar of the invention.
Fig. 5 is hardware circuit overall structure schematic block diagram of the invention.
Fig. 6 is each board structure of circuit schematic block diagram of the invention.
Fig. 7 is control program circuit schematic diagram of the invention.
Fig. 8 is the scaling board image schematic diagram of ultra-wide angle infrared camera shooting of the invention.
Each component mark in attached drawing are as follows: 1- pedestal, 2- frame, 3- cross bar, 4- scaling board, 5- castor, 6- target unit,
61- target fixed plate, 62- Peltier array, Peltier board of the 621- as cooling surface, Paar of the 622- as heating surface
Pasting board, 63- radiator fan, 64- circuit board, 7- positioning component, 71- lengthen round nut, the adjustable lifting bolt of 72-, and 73- is fixed
Bolt, 74- sliding nut.
Specific embodiment
The compound scaling board of visible light infrared double-waveband as shown in Figures 1 to 7, including pedestal 1, and be fixed on pedestal 1
The frame 2 of side, and pass through the scaling board 4 that cross bar 3 is connect with frame 2；1 bottom of pedestal is equipped with the foot of included locking structure
Wheel 5；The scaling board 4 is made of 24 groups of target units 6, and target unit 6 is sequentially connected in series；Each target unit 6 includes
Target fixed plate 61, and it is installed on the Peltier array 62 of 61 front side of target fixed plate, and be successively installed on target fixed plate 61
Two radiator fans 63 and circuit board 64 of rear side；The Peltier array 62 and radiator fan 63 respectively with the automatically controlled company of circuit board 64
It connects；Each circuit board 64 distinguishes carry in same CAN bus, and circuit board 64 after the conversion of communication management module with it is upper
Position machine communication connection；
Central control module is provided on the circuit board 64, and the temperature control mould being electrically connected with central control module
Block, and the temperature sensor with central control module communication connection；The Peltier array is electrically connected with temperature control modules；Institute
Peltier array 62 is stated by eight 621,622 groups of the Peltier board combined in such a way that cooling surface and heating surface are alternately arranged
At；Independent power module is additionally provided on each circuit board 6；The power module respectively with central control module, temperature
It spends control module and radiator fan 63 is electrically connected.
The cross bar 3 is uniformly distributed along 2 short transverse of frame, and the cross bar 3 and frame 2 are by aluminium alloy extrusions system
At.
Described its surrounding of target fixed plate 61 is equipped with positioning component 7；The target fixed plate 61 is solid by positioning component 7
Due between upper and lower adjacent two cross bar 3；The positioning component 7 includes the interspersed lengthening circle for being installed on 61 surrounding of target fixed plate
Nut 71, and it is fixed on the adjustable lifting bolt 72 for lengthening 71 end of round nut, and lifting bolt is adjusted through being installed on
72 and lengthen round nut 71 in fixing bolt 73；Described adjustable 72 the upper end of lifting bolt or lower end are connected with for adjusting
The sliding nut 74 that element moves left and right；74 active card of sliding nut is set in the slideway that cross bar 3 is equipped with.
It is applied respectively as the Peltier board 621,622 of cooling surface and heating surface and is set as white target and black mark
Target, and white target is identical with black target size, is 80mmX80mm.
The central control module includes master controller, and the analog-to-digital conversion interface and CAN that are electrically connected with master controller are total
Line communication interface；The master controller passes through CAN bus communication interface and CAN bus communication connection.
The temperature control modules are made of analog line driver and its peripheral circuit.
The temperature sensor is NTC temperature sensor, and it turns after filter circuit with the modulus of central control module
Alias connection.
The power module includes AC-DC converting unit, and the DC-DC being electrically connected with AC-DC converting unit its output end
Converting unit；Described its input terminal of AC-DC converting unit is electrically connected with city；The AC-DC converting unit is by straight for exporting 5V
First AC-DC conversion circuit of galvanic electricity pressure and the 2nd AC-DC conversion circuit composition for exporting 12V DC voltage, and first
AC-DC conversion circuit and the mutually isolated output DC voltage of the 2nd AC-DC conversion circuit；The first AC-DC conversion circuit its
Output end is electrically connected with temperature controller；The 2nd AC-DC conversion circuit its output end respectively with radiator fan 63 and DC-DC
The electrical connection of its input terminal of converting unit；Described its output end of DC-DC converting unit respectively with the master controller of central control module,
Analog-to-digital conversion interface and the electrical connection of CAN bus communication interface, and its output voltage of DC-DC converting unit is 3.3V.
The Peltier board 621,622 is 12706 type peltier-elements.
Its working method of the scaling board is as follows:
Inside single circuit board, closed loop configuration is constituted by temperature acquisition, PWM output, individual unit is controlled for realization
Quickly, stablize, control program of the main operation controller based on pid algorithm；The expression formula of discrete type pid algorithm is as follows:
It can be obtained by (1):
It can be obtained by (1) (2):
Δ u (k)=Kp(err(k)-err(k-1))+Kierr(k)+Kd(err(k)-2err(k-1)+err(k-2))； (3)
That is the expression formula of increment PI D, the err (k) in formula is k moment deviation of the setting value with respect to actual value, Kp、Ki、Kd
Three coefficients are obtained by gathering to try to adjust repeatedly；Δ u (k) is to adjust variable quantity；
After master controller powers on, first initialize CAN bus communication interface, analog-digital converter and timer device, later with
Setting cycle sequences read the temperature of each unit, and with carry out PID arithmetic after the setting value of the unit, be adjusted
Amount, is modulated the working condition of the unit；
Temperature sensor is communicated with host computer, obtains the target temperature of discrete cell, and read discrete cell
Present real-time temperature；Input variable of the temperature of single Peltier board as pid algorithm, is calculated output quantity；Center control
Module controls the working polarity and operating current of Peltier board with the calculated result of pid algorithm, finally obtains stable temperature control
Result processed；Central control unit drives radiator fan, cools down for temperature control modules.
The compound scaling board of visible light infrared double-waveband of the invention, the design principle of scaling board are based primarily upon Peltier effect
It answers, when electric current passes through thermocouple, one of surface radiating, another absorbs heat, to generate between two surfaces
The temperature difference；The compound scaling board of visible light infrared double-waveband of the invention is mainly made of Peltier board, and with cooling surface and is added
The mode that hot surface is alternately arranged combines, and being similar to checkerboard pattern can be accurately controlled each by the size of setting electric current
The temperature of Peltier board；By this design, for scaling board infrared image than more visible, contrast is high after energization, can be infrared
Calibration angle point is readily recognized in the image of camera shooting, is illustrated in figure 8 the scaling board image of ultra-wide angle infrared camera shooting；
In addition, cooling surface and heating surface difference painted white and black, can be used in Visible Light Camera calibration；Of the invention is visible
The compound scaling board of light infrared double-waveband is made of four parts: central control module, temperature control modules, temperature sensor and Paar
Paste array；Temperature sensor is responsible for temperature sensor, and temperature control modules control the temperature of each semiconductor unit of Peltier array
Degree.
Above-described embodiment is only better embodiment of the invention, therefore all according to structure described in present patent application range
It makes, the equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (10)
1. a kind of compound scaling board of visible light infrared double-waveband, it is characterised in that: including pedestal, and be fixed on the frame above pedestal
Frame, and the scaling board being connect with frame by cross bar；The base bottom is equipped with the castor of included locking structure；The calibration
Plate is made of 24 groups of target units, and target unit is sequentially connected in series；Each target unit includes target fixed plate, and installation
Peltier array on front side of target fixed plate, and successively it is installed on two radiator fans and circuit board on rear side of target fixed plate；
The Peltier array and radiator fan are electricly connected with circuit board respectively；Each circuit board difference carry is in same CAN
In bus, and circuit board communicates to connect after the conversion of communication management module with host computer；
It is provided with central control module, and the temperature control modules being electrically connected with central control module on the circuit board, and with
The temperature sensor of central control module communication connection；The Peltier array is electrically connected with temperature control modules；The Paar
Patch array is alternately arranged the Peltier board that mode combines by eight with cooling surface and heating surface and forms；Each circuit board
On be additionally provided with independent power module；The power module respectively with central control module, temperature control modules and radiation air
Fan electrical connection.
2. the compound scaling board of visible light infrared double-waveband according to claim 1, it is characterised in that: the cross bar is along frame
Short transverse is uniformly distributed, and the cross bar and frame are made of aluminium alloy extrusions.
3. the compound scaling board of visible light infrared double-waveband according to claim 1, it is characterised in that: the target fixed plate
Its surrounding is equipped with positioning component；The target fixed plate is fixed between upper and lower adjacent two cross bar by positioning component；It is described
Positioning component includes the interspersed lengthening round nut for being installed on target fixed plate surrounding, and is fixed on and lengthens the adjustable of round nut end
Lifting bolt is saved, and through the fixing bolt being installed in adjustable lifting bolt and lengthening round nut；The adjustable lifting
Bolt the upper end or lower end are connected with the sliding nut moved left and right for regulating element；The sliding nut active card is set to cross
In the slideway that bar is equipped with.
4. the compound scaling board of visible light infrared double-waveband according to claim 1, it is characterised in that: as cooling surface and
The Peltier board of heating surface applies respectively is set as white target and black target, and white target and black target size phase
It together, is 80mmX80mm.
5. the compound scaling board of visible light infrared double-waveband according to claim 1, it is characterised in that: the center control mould
Block includes master controller, and the analog-to-digital conversion interface and CAN bus communication interface that are electrically connected with master controller；The master controller
Pass through CAN bus communication interface and CAN bus communication connection.
6. the compound scaling board of visible light infrared double-waveband according to claim 1, it is characterised in that: the temperature controls mould
Block is made of analog line driver and its peripheral circuit.
7. the compound scaling board of visible light infrared double-waveband according to claim 1, it is characterised in that: the temperature sensor
For NTC temperature sensor, and it connect after filter circuit with the analog-to-digital conversion interface of central control module.
8. the compound scaling board of visible light infrared double-waveband according to claim 1, it is characterised in that: the power module packet
Include AC-DC converting unit, and the DC-DC converting unit being electrically connected with AC-DC converting unit its output end；The AC-DC conversion
Its input terminal of unit is electrically connected with city；The AC-DC converting unit converts electricity by the first AC-DC for exporting 5V DC voltage
Road and the 2nd AC-DC conversion circuit composition for exporting 12V DC voltage, and the first AC-DC conversion circuit and the 2nd AC-DC
The mutually isolated output DC voltage of conversion circuit；Its output end of the first AC-DC conversion circuit is electrically connected with temperature controller；
The 2nd AC-DC conversion circuit its output end is electrically connected with radiator fan and DC-DC converting unit its input terminal respectively；It is described
Its output end of DC-DC converting unit connects with the communication of the master controller of central control module, analog-to-digital conversion interface and CAN bus respectively
Mouth electrical connection, and its output voltage of DC-DC converting unit is 3.3V.
9. the compound scaling board of visible light infrared double-waveband according to claim 1, it is characterised in that: the Peltier board is
12706 type peltier-elements.
10. the compound scaling board of visible light infrared double-waveband according to claim 1, it is characterised in that: the scaling board its
Working method is as follows:
Inside single circuit board, closed loop configuration is constituted by temperature acquisition, PWM output, for realize to individual unit control it is quick,
Stablize, control program of the main operation controller based on pid algorithm；The expression formula of discrete type pid algorithm is as follows:
It can be obtained by (1):
It can be obtained by (1) (2):
Δ u (k)=Kp(err(k)-err(k-1))+Kierr(k)+Kd(err(k)-2err(k-1)+err(k-2))； (3)
That is the expression formula of increment PI D, the err (k) in formula is k moment deviation of the setting value with respect to actual value, Kp、Ki、KdThree
Coefficient is obtained by gathering to try to adjust repeatedly；Δ u (k) is to adjust variable quantity；
After master controller powers on, CAN bus communication interface, analog-digital converter and timer device are first initialized, later with setting
Cycle sequences read the temperature of each unit, and with PID arithmetic is carried out after the setting value of the unit, the amount of being adjusted is right
The working condition of the unit is modulated；
Temperature sensor is communicated with host computer, obtains the target temperature of discrete cell, and read the current of discrete cell
Real time temperature；Input variable of the temperature of single Peltier board as pid algorithm, is calculated output quantity；Central control module
With the calculated result of pid algorithm, the working polarity and operating current of Peltier board are controlled, finally obtains stable temperature control knot
Fruit；Central control unit drives radiator fan, cools down for temperature control modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471924.2A CN110298887A (en) | 2019-05-31 | 2019-05-31 | A kind of compound scaling board of visible light infrared double-waveband |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910471924.2A CN110298887A (en) | 2019-05-31 | 2019-05-31 | A kind of compound scaling board of visible light infrared double-waveband |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110298887A true CN110298887A (en) | 2019-10-01 |
Family
ID=68027338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910471924.2A Pending CN110298887A (en) | 2019-05-31 | 2019-05-31 | A kind of compound scaling board of visible light infrared double-waveband |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110298887A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104284103A (en) * | 2014-09-26 | 2015-01-14 | 国家电网公司 | Calibration method of internal parameters of thermal infrared camera |
| CN104375375A (en) * | 2014-11-17 | 2015-02-25 | 国家电网公司 | Method and device for calibrating visible light camera and thermal infrared imager camera through checkerboard |
| CN204301863U (en) * | 2014-11-17 | 2015-04-29 | 国家电网公司 | Novel visible and thermal infrared imager camera parameter combined calibrating plate |
| CN107067442A (en) * | 2017-06-07 | 2017-08-18 | 云南师范大学 | A kind of infrared scaling board synchronous with visible ray dual camera |
| CN107610185A (en) * | 2017-10-12 | 2018-01-19 | 长沙全度影像科技有限公司 | A kind of fisheye camera fast calibration device and scaling method |
| CN109186653A (en) * | 2018-08-11 | 2019-01-11 | 西安应用光学研究所 | It is a kind of suitable for the high-precision of visible light/infrared camera calibration, inexpensive scaling board and scaling method |
| CN209879575U (en) * | 2019-05-31 | 2019-12-31 | 中国人民解放军陆军工程大学 | Visible light infrared dual-waveband composite calibration plate |
-
2019
- 2019-05-31 CN CN201910471924.2A patent/CN110298887A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104284103A (en) * | 2014-09-26 | 2015-01-14 | 国家电网公司 | Calibration method of internal parameters of thermal infrared camera |
| CN104375375A (en) * | 2014-11-17 | 2015-02-25 | 国家电网公司 | Method and device for calibrating visible light camera and thermal infrared imager camera through checkerboard |
| CN204301863U (en) * | 2014-11-17 | 2015-04-29 | 国家电网公司 | Novel visible and thermal infrared imager camera parameter combined calibrating plate |
| CN107067442A (en) * | 2017-06-07 | 2017-08-18 | 云南师范大学 | A kind of infrared scaling board synchronous with visible ray dual camera |
| CN107610185A (en) * | 2017-10-12 | 2018-01-19 | 长沙全度影像科技有限公司 | A kind of fisheye camera fast calibration device and scaling method |
| CN109186653A (en) * | 2018-08-11 | 2019-01-11 | 西安应用光学研究所 | It is a kind of suitable for the high-precision of visible light/infrared camera calibration, inexpensive scaling board and scaling method |
| CN209879575U (en) * | 2019-05-31 | 2019-12-31 | 中国人民解放军陆军工程大学 | Visible light infrared dual-waveband composite calibration plate |
Non-Patent Citations (3)
| Title |
|---|
| TAKASHI SHIBATA，ET AL.: "Accurate Joint Geometric Camera Calibration of Visible and Far-Infrared Cameras", 《SOCIETY FOR IMAGING SCIENCE AND TECHNOLOGY》, pages 7 - 13 * |
| 李刚，等: "基于PSO - ELM 的双目视觉摄像机标定", 《广西大学学报: 自然科学版》, vol. 39, no. 6, pages 1285 - 1290 * |
| 赵美蓉;李瀚辰;佟颖;: "一种红外与可见光融合的"双双目"立体视觉系统的标定方法研究", 光学技术, no. 05 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6205069B2 (en) | Imaging system and method | |
| US11627704B2 (en) | Lighting, sensing and imaging methods and apparatus for controlled environment agriculture | |
| CN104154997B (en) | A kind of UAV system small-sized self-stabilization aviation multi-optical spectrum imaging system | |
| AU2010236651B2 (en) | Vehicle-mountable imaging systems and methods | |
| CN102999919B (en) | Ego-motion estimation system and method | |
| CN209879575U (en) | Visible light infrared dual-waveband composite calibration plate | |
| US20220301194A1 (en) | Tracking method and device | |
| CN102768072A (en) | Thermal infrared imager and correcting device and method thereof | |
| CN108550104B (en) | Image registration method and device | |
| CN104508553B (en) | The method of the infrared illumination bundle that there is variable illumination pattern for generating and device | |
| CN108666856A (en) | Power stability type solid state laser and control method | |
| CN205749902U (en) | A kind of multispectral range-measurement system of band distance measurement function | |
| US20150241176A1 (en) | Adaptive visual camouflage | |
| CN106370304B (en) | A kind of Minitype infrared real-time radiation robot scaling equipment | |
| WO2020041103A1 (en) | Automated luminaire commissioning using computer vision and light-based communications | |
| CN107067442A (en) | A kind of infrared scaling board synchronous with visible ray dual camera | |
| CN110298887A (en) | A kind of compound scaling board of visible light infrared double-waveband | |
| CN104732557A (en) | Color point cloud generating method of ground laser scanner | |
| CN109741400A (en) | A kind of device and method of industry binocular camera and infrared thermal imager combined calibrating | |
| CN113610793A (en) | Server fan control method, system, equipment and medium | |
| CN203732162U (en) | Continuous zooming medium-wave refrigeration thermal imager | |
| CN113483895B (en) | Power line safety detection method based on thermal imager imaging parameter calibration plate device | |
| CN208623833U (en) | Shooting stereo images system | |
| CN205427318U (en) | Scanner subassembly | |
| CN110059703B (en) | Automatic energy flow density adjusting device and method for heat absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |